Synthesis and characterization of (CaxLa1-x)(Ba1.75-xLa0.25+x) Cu3O7+δ tetragonal superconductor by an aqueous solution technique using citric acid

Yasushi Sato, Kohtaro Yoshioka, Minoru Osada, Valery Petrykin, Masato Kakihana, Yoshito Tanaka, Ai Yamaguchi, Takahiro Katsumata, Hiroshi Yasuoka

研究成果: Article

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Polycrystalline samples of (CaxLa1-x) (Ba1.75-xLa0.25+x)Cu3O7+δ tetragonal superconductor for Ca content (x) from 0.0 to 0.6 were synthesized by a simple aqueous solution technique using citric acid. The combined results of X-ray diffraction and Raman scattering analysis indicated that the polycrystalline samples for the entire Ca content (x) were of single-phase character. The Tc onset values for (x) from 0.0 to 0.6, determined precisely from the complex magnetic susceptibility measurements, increased from 45.0 K for x=0.0 to 78.7 K for x=0.4, remained almost constant at 80 K between x=0.5 and x=0.6. It was also found that sintering condition affected rather dramatically superconducting properties in this system.

元の言語English
ページ(範囲)1147-1151
ページ数5
ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
48
発行部数12
出版物ステータスPublished - 2001 12
外部発表Yes

ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys

フィンガープリント Synthesis and characterization of (Ca<sub>x</sub>La<sub>1-x</sub>)(Ba<sub>1.75-x</sub>La<sub>0.25+x</sub>) Cu<sub>3</sub>O<sub>7+δ</sub> tetragonal superconductor by an aqueous solution technique using citric acid' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

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